4.3.4 The Free-Body Diagram Part A Free-body diagrams are made from a system of interacting parts. Each part of the system is treated as an isolated part. In this activity, you will observe the following when the mass of an object is changed: 1. The force lines for the rope and cylinder 2. The equations of equilibrium Based on this interaction, how does a free-body diagram show how the mass is supported? It shows how the cord can support most of the mass. It shows how the normal forces are interconnected between a cord and a changing mass. It shows how the cord changes the direction of a supported mass. It shows how the normal and gravitational forces respond to a change in mass. B D Set a value on the slider and select SOLVE to solve for the tensions in ropes AB and BC Drag the slider to change the mass of cylinder D SOLVE